Parameters

Description

Return Values

The di_path_bus_addr() function returns a string representing the pHCI child path node's unit-address. This function is the di_path_t peer of di_bus_addr(3DEVINFO).

The di_path_client_node() function returns the di_node_t of the 'client' device node associated with the given path node. If the client device node is not present in the current device tree snapshot, DI_NODE_NIL is returned and errno is set to ENOTSUP.

The di_path_node_name() function returns a pointer to a null-terminated string containing the path node name. This function is the di_path_t peer of di_node_name(3DEVINFO).

The di_path_instance() function returns the instance number associated with the given path node. A path node instance is persistent across attach(9E)/detach(9E)and device reconfigurations, but not across reboot. A path node instance is unrelated to a device node di_instance(3DEVINFO).

The di_path_phci_node() function returns the di_node_t of the pHCI host adapter associated with the given path node. If the pHCI device node is not present in the current device tree snapshot, DI_NODE_NIL is returned and errno is set to ENOTSUP.

The di_path_state() function returns the state of an I/O path. This function may return one of the following values:

DI_PATH_STATE_ONLINE

Identifies that the path_info node is online and I/O requests can be routed through this path.

DI_PATH_STATE_OFFLINE

Identifies that the path_info node is in offline state.

DI_PATH_STATE_FAULT

Identifies that the path_info node is in faulted state and not ready for I/O operations.

DI_PATH_STATE_STANDBY

Identifies that the path_info node is in standby state and not ready for I/O operations.